Exclusion of 5-HT2A and 5-HT2C receptor genes as candidate genes for migraine.
Several lines of investigation suggest that the serotonergic system may be involved in the pathogenesis of migraine. In particular, drugs which block 5-HT2 receptor subtypes appear to be effective migraine prophylactic agents. Therefore, chromosomal DNA regions overlapping the 5-HT2A (13q14-q22) and 5-HT2C(Xq22-25) receptor loci were analyzed for possible linkage to the clinical diagnosis of migraine. No evidence for linkage to either chromosomal region was found, although a small subset of migrainous families showed positive likelihood of odds (LOD) scores. However, a homogeneity (HOMOG) analysis provided no statistical evidence for locus heterogeneity. The coding region of the 5-HT2A and 5-HT2C receptor genes was also analyzed in migraine patients and unaffected controls using polmerase chain reaction and direct sequencing. No mutations were found in the deduced amino acid sequence of either receptor in the sample of migraineurs tested. These results indicate that DNA-based mutations in the 5-HT2A and 5-HT2C receptors are not generally involved in the pathogenesis of migraine.
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- DOI : http://dx.doi.org/10.1046/j.1526-4610.1996.3604254.x
- OCLC ECO : 저널
- Blackwell Publishing_STM : 저널 > 논문
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